4 Replies Latest reply on May 17, 2016 8:55 AM by TSGal

    Huge Empty FM Server 14 stderr Log File



      Huge Empty FM Server 14 stderr Log File


      FileMaker Server



      Operating system version

      OS X 10.10.3

      Description of the issue

      The main HD with FileMaker Server installed on it was out of space due to extremely large /Library/FileMaker Server/Logs/stderr file over 200 GB.  FM Server was stuck and could not shut down so I had to force quit FMS and all FM tasks.  Before I cleared the stderr file I did a "tail" and all the lines that I could find were blank.

      Steps to reproduce the problem

      Unknown.  The FMS 14 had been running for about a month

      Expected result

      stderr should not fill up with blank lines

      Actual result

      it was full of blank lines

      Exact text of any error message(s) that appear

      All errors that appeared were related to out-of-disk and not the stderr itself

      Configuration information

      Mac Mini Core i5 with 256 GB SSD boot drive and backups on external volume.  Databases about 16 GB total with container storage.


      After forcing everything out I realized that I could clear the log file without stopping everything by doing:

      cd /Library/FileMaker Server/Logs
      sudo cp /dev/null stderr


        • 1. Re: Huge Empty FM Server 14 stderr Log File

          John Duncan:

          Thank you for your post.

          stderr should not have excessive blank lines, and no similar issue has been reported.  I do not know what would cause this issue, but I can assure you it is not normal.

          My recommendation would be to stop FileMaker Server, move your database files from the Databases folder to the Desktop, uninstall FileMaker Server, remove the FileMaker Server folder, and reinstall.  Once installed, move the database files from the Desktop to the FileMaker Server Databases folder.

          If you notice any further oddities with the the stderr file, please let me know.

          FileMaker, Inc.

          • 2. Re: Huge Empty FM Server 14 stderr Log File

            At the time the problem occurred I truncated stderr using the method I mentioned above and restarted the server machine.  So far it has been running for 8 days and stderr is only 8KB and has not been growing.  I'll post again if the problem re-occurs and I am keeping an eye on other servers to see if I spot the same problem.

            • 3. Re: Huge Empty FM Server 14 stderr Log File

              I have had a similar situation occur. Ran out of disk space, had to force shut down everything. Made room by deleting some extraneous back up files related to an ERP upgrade. Everything running ok again but did an OmniSweep and saw that the FMS logs folder was over 30GBs. Can I simply delete the stderr log file? Will a new one be generated then?

              • 4. Re: Huge Empty FM Server 14 stderr Log File



                Yes, you can delete the stderr.log file, but not while FileMaker Server is running.  Be sure to not only stop FileMaker Server, but also any corresponding services.  Then, delete stderr.log file, and reboot the server.



                FileMaker, Inc.